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A hand-operated winnower


, : A hand-operated winnower. Rural Technology Guide, Tropical Products Institute (11): 26

This guide describes how to make a hand-operated winnower for separating kernel from shell or husk, using materials which are generally available locally. Most of the parts are made of wood but they can be of metal if this is cheaper or easier to obtain. For instance, the fan blades can be cut from a metal tin or drum and screwed to the fan boss. Bearings can be made of hardwood, or of metal tubing clamped in a wooden block.

US$29.90


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